Golf ball marker



FIG. 1 is a perspective view of my new golf ball marker;

FIG. 2 is a left side view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a back view thereof;

FIG. 5 is a frontal view thereof;

FIG. 6 is a bottom side view thereof; and,

FIG. 7 is a right view thereof.

The broken line shown form no part of the claimed design. 

CLAIM The ornamental design for a golf ball marker, as shown and described. 